Changed the group related messages which resolves wso2/product-iots#984

components/device-mgt/org.wso2.carbon.device.mgt.ui/src/main/resources/jaggeryapps/devicemgt/app/pages/cdmf.page.groups/groups.hbs

@@ -87,7 +87,7 @@
                             <h3 class="text-muted">
                                 <i class="fw fw-group fw-3x"></i>
                             </h3>
-                            <h3 class="text-muted">You don't have any device group. Let's add a new device group!</h3>
+                            <h3 class="text-muted">You don't have any device groups. Let's add a new device group!</h3>
                             {{#if permissions.ADD_GROUP}}
                                 <h3>
                                     <!--suppress HtmlUnknownTarget -->
@@ -236,7 +236,7 @@
                     <div class="content">
                         <div class="row">
                             <div class="col-lg-5 col-md-6 col-centered">
-                                <h3>Do you really want to remove this group from your Group List?</h3>
+                                <h3>Do you really want to remove this group?</h3>
 
                                 <div class="buttons">
                                     <a href="#" id="remove-group-yes-link" class="btn-operations">
@@ -257,7 +257,7 @@
                     <div class="content">
                         <div class="row">
                             <div class="col-lg-5 col-md-6 col-centered">
-                                <h3>Group was successfully removed.</h3>
+                                <h3>Successfully removed the group.</h3>
                             </div>
                         </div>
                     </div>